Page 14.4
The above figure assumes the minimum on time for the prior stage has
been met to allow the next stage to turn on; once the deadbands have
been exceeded.
Heat
Setpoint
Cool
Setpoint
Deadband
Deadband
Deadband
Deadband
Deadband
db 1
db 1
db 2
db 2
db 3
(adj. 1-6 )
(adj. 0-10 )
(adj. 0-10 )
(adj. 0-10 )
(adj. 1-6 )
1st Stage
turn on
2nd Stage
turn on
3rd Stage
turn on
1st Stage
turn on
2nd Stage
turn on
Heating
Cooling
TEMPERATURE
DECREASE
INCREASE
Adjusting the Deadband
MULTI-STAGE OPERATION - Controls up to three Heat and two Cool
stages.
The
2nd Stage
of heat or cool is
(
A
) The 1st Stage has been on for the time required (
step #28,
page 14.6).
It is adjustable from 0-60 minutes and the default
is two minutes.
(
B
) The temperature spread from the setpoint is equal to or greater
than:
the setpoint plus the 1st stage deadband (step #25, next
page), plus the 2nd stage deadband (step #26, next page).
This 2nd stage deadband is adjustable from 0-10 degrees and
the default is two degrees.
The
3rd Stage
of Heat is turned on when:
(A)
The 2nd stage has been on for the time required (
step #29,
page 14.6).
It is adjustable from 0-60 minutes and the default
is two minutes.
(B)
The temperature from the setpoint is equal to or greater
than:
the setpoint plus the 1st stage deadband (step #25,
next page), plus the 2nd stage deadband (step #26, next
page) plus the 3rd stage deadband (step #27, next page).
This 3rd stage deadband is adjustable from 0-10 degrees
and the default is two degrees.
turned on when:
And
And
14
Summary of Contents for T1 900
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